Switching time from the RX mode to the TX mode in TDD

As a result of the experiment, the switching time is equal 24 us.TDD mode.We accept and re-emit pulses (duration 50 us).Switching modes is done using the enable signal and txnrx.Signal ensm state indicates that the state is replaced from RX to TX mode in about 800 ns.However, at the beginning of the TX mode see transition process of about 20 us.To illustrate attaching waveform, which shows the receiver input signal (green) and transmitter output (yellow): 0 us - the beginning of the input pulse 19 us - start RX mode 50 us - the end of the input pulse 64 us - end RX mode 65 us - start TX mode 86 us - the end of the transition process 104 us - the end of the output pulseWhat caused this transition process and how to minimize its duration?

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You may be seeing this as the Tx path the power up time is dominated by Tx DAC (~18us).

One way to minimize this is use FDD Independent Control Mode and turn on Tx early and other is to use FDD independent mode and use real-time writes to register 0x051[D4] for power on/off the Tx LO, DAC stays on.